ICD-10 Code for Urticaria
The ICD-10-CM code for urticaria is L50.9 — Urticaria, unspecified. This is the code the Alphabetic Index gives for urticaria with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
L50.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which urticaria code should you use?
The Alphabetic Index lists 18 codes under Urticaria. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| with angioneurotic edema | T78.3 | Angioneurotic edema | not billable |
| allergic | L50.0 | Allergic urticaria | |
| cholinergic | L50.5 | Cholinergic urticaria | |
| chronic | L50.8 | Other urticaria | |
| cold, familial | L50.2 | Urticaria due to cold and heat | |
| contact | L50.6 | Contact urticaria | |
| dermatographic | L50.3 | Dermatographic urticaria | |
| factitial | L50.3 | Dermatographic urticaria | |
| familial cold | M04.2 | Cryopyrin-associated periodic syndromes | |
| giant | T78.3 | Angioneurotic edema | not billable |
| gigantea | T78.3 | Angioneurotic edema | not billable |
| idiopathic | L50.1 | Idiopathic urticaria | |
| larynx | T78.3 | Angioneurotic edema | not billable |
| neonatorum | P83.88 | Other specified conditions of integument specific to newborn | |
| nonallergic | L50.1 | Idiopathic urticaria | |
| papulosa | L28.2 | Other prurigo | |
| pigmentosa | D47.01 | Cutaneous mastocytosis | |
| recurrent periodic | L50.8 | Other urticaria | |
| serum | T80.69 | Other serum reaction due to other serum | not billable |
| solar | L56.3 | Solar urticaria | |
| specified type NEC | L50.8 | Other urticaria | |
| thermal | L50.2 | Urticaria due to cold and heat | |
| vibratory | L50.4 | Vibratory urticaria |
Urticaria with angioneurotic edema
| hereditary | D84.1 | Defects in the complement system |
Urticaria due to
Urticaria giant
| hereditary | D84.1 | Defects in the complement system |
Urticaria larynx
| hereditary | D84.1 | Defects in the complement system |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources